Edge trimming tool



June 27, 1933. R. H. sToDDARD 1,915,557

` EDGE TRIMMING TOOL Original Filed Aug. 5, 1931 fi El..

76 77 i@ 556226 o 2z 35 J7 34 J6 a/ Inventor Bygmw/zm ,/1 ltorney les Fatented June 27, 19,33

RICHARD H. STODDARD, OF LOWVILLE, NEW YORK arr arri v EDGE TRIMMING TOOL Application iiled August 3,. 1931, Serial No. 554,809. Renewed May 5, 1933.

The present invention relates to new and useful improvements in shoe machinery, and more particularly it pertains to a device for trimming the edge of shoe soles.

It is one of the objects ofthe present invention to provide a new and novel type of sole edge trimming tool in which the effective length of a plurality of cutting edges of a rotary tool may bevaried at will.

It is a further object of the invention to provide a new and novel construction Whereby the effective length of a plurality of cutting edges may be changed during rotation of the tool and without stopping the same.

le With the above and other objects in view, reference will be had to the accompanying drawing wherein;

Figure 1 is a view in elevation and partly ,c in longitudinal section illustrating an edge trimming tool constructed in accordance with thel present invention,

Figure 2 is a top plan view thereof partly in section, with a portion of the base omitted,

Figure 3 is a transverse sectional view taken on the line 3-3 of Figure 1, and

Figure 4; is a sectional view taken on the line 4 4 of Figure 2.

Referring more particularly to the drawing, the reference character 5 designates a suitable base or standard and the upper portion @thereof forms a bearing 7 for a shaft 8. The shaft 8 is driven in any desired manner not herein illustrated, and upon its outer end and secured thereto by means of a screw or the like 9 and a removable plate 10, there is a rotary cutter 11. This rotary cutter comprises a plurality of spaced cutting edges 12 the spaces between the cutting edges being designated 13 and best illustrated in Figure 2. The'cutter seats against a shoulder 14 upon the shaft and is keyed thereto as at 15 and in this manner, the cutter is secured to the shaft in such a manner as to rotate therewith.

Means is provided to vary the effective cut ting length of the cutting edges 12, and in the present illustration of the invention, this means comprises a plurality of projections or the like 16 carried by a member 17 slidim ably mounted upon the shaft 8 in such a man ner that thel projections 16 pass into and through the spaces 13 between the cutting edges 12 of the cutter 11.

Means is provided to move this member 17 longitudinally of the shaft 8, and in the 55 present illustration of the invention this means comprises a sleeve or the like 13 which is carried by a second sleeve or the like 19 which in turn has threaded engagement as at 20 with a threaded member 21 secured to the 6u bearing portion 6 of the base 5 by means of caps, screws or thev like 22. Thus it will be apparent that the threaded member 21 is stationary and does not rotate with the shaft 8 although the shaft 8 extends therethrough. 65 The member 19 may have'a knurled portion 23 by means of which it may be rotated upon the threaded member 21, and in its rotation upon the threaded member 21, the member 19 moves longitudinally thereof either to the 79 right or left in the drawing depending upon the direction of rotation, and in this rotary movement will move the member 18 which in turn engages the member 17 to slide the same along the shaft 8 as and for the purpose here- 75 tofore mentioned.

The member 19 upon its inner surface has an annular recess as illustrated in Figure 2 and located at diametrically opposite points and leading into said recess 30, there are channels or passages 31. Movable through the passages 31 and normally positioned in the recess 30 out of alignment with the passages 31, there are projections or the like 32 which extend from the inner end of an eXtension 33 of the member 17, and it is by this construction that the member 17 is moved to the right in Figure 1, it being understood that Y to move it to the left, the extension 34 of the member 19 pushes the member 17 by reason 9' of engagement with a shoulder 35 carried thereby.

Thus it will be apparent that even though the shaft 8 is rotating, the members 18, 19 and 21 will not rotate and thus will be free 95 for operation even though the shaft be rotated. It will be noted that the member 18 heretofore mentioned will be secured to the member 19 by means of a suitable screw or boit se. l0

Thus to vary the effective length of the cutting edges l2 of the cutter 11, it is only necessary to grasp the knurled portion 23 of the member 19 and rotate the samefin the del sired direction to either retract or extend the pojection 16 of the member 17 in the spaces tween the cutting edges 12. Y

, Vhile the invention has been'herein disclosed in a'preferred form, it is to be understood that the invention is not to be limited y to the specific construction'herein shown and that it may be practiced in other forms Without departing from the spirit thereof.

`Having thus described the lnvention, what is 'claimed as new and whatl it is desired to se cure by Letters Patent ofthe United States,

1S; i i

` and means operated by said rotatable sleeve kfor moving said collar in opposite directions.

` In testimony whereof I aihx my signature. 8O

RICHARD sToDDARD. 

